# CARD_IdentifyBackup

## C Specification

      #include <nitro/card.h>

      void CARD_IdentifyBackup(CARDBackupType type);

## Description

This function specifies the backup device that is mounted in a NITRO-CARD. After this function is specified, CARD functions will work based on the assumption that the relevant device is mounted.

Do not access a device by specifying a device that is not actually mounted because it can cause the improper operation of the program and damage to the mounted device.

This function communicates internally with the IO processor via PXI. Note that the process will not be completed unless the PXI interrupt is enabled.

## Arguments

`type` | The type of backup device that is mounted in a NITRO-CARD.

## Return Values

None.

## See Also

`CARDBackupType`, `CARD_GetBackupTotalSize`, `CARD_GetBackupSectorSize`, `CARD_GetCurrentBackupType`

## Revision History

09/10/2004 Added description about prohibiting the specification of an unmounted device
08/18/2004 Added the description regarding the PXI interrupt
07/05/2004 Initial Version